How Volcanoes Froze the Earth (Twice)


Comments • 1 372

  • AlessioAndres
    AlessioAndres  12 hours back

    The best narrator on this channel! I would pay you to read to me haha^^ Thank you :*

    • Scooter Johansen
      Scooter Johansen  4 days back

      Goodness volcanoes are not erupting ATM .

      • A Simple Dog
        A Simple Dog  1 weeks back

        "we still have glaciers today!" not for long were entering fireball earth era!!!

        • Peter theoneandonly
          Peter theoneandonly  1 weeks back

          Who is Steve!

          • Thornback
            Thornback  1 weeks back

            can you please also use the metric system, it broadens your material to the rest of the world and gives users of the imperial system reference and knowledge of the universal scale. There is no good reason to not use both scales.

            • Gary Chynne
              Gary Chynne  1 weeks back


              • Ace Anthony Referiza
                Ace Anthony Referiza  2 weeks back

                Is it just me or does it feel like a lot of the terms she is using doesn't sound scientific enough?

                • Bert Jongerden
                  Bert Jongerden  2 weeks back

                  Dammit vulcanoes you did it again!

                  • Paul Dub
                    Paul Dub  2 weeks back

                    Clear and concise explaining thanks

                    • jeremy Mizer
                      jeremy Mizer  2 weeks back

                      Finally PBS is on a platform that will pay them for their amazing work

                      • Andy Smith
                        Andy Smith  3 weeks back

                        Lasts 15 million years,what does that even mean

                        • Max Luv
                          Max Luv  3 weeks back

                          Why not tell the people the truth?

                          • Max Luv
                            Max Luv  3 weeks back

                            There was a tectonic plate movement,in witch caused masses amounts of volcanoes to erupt,putting a lot heat as well,causing the earth to heat up,in the center of our planet,causing the cold to go down to the poles & flash freeze the poles,just like in Antarctica is today,with frozen Tsunamis waves over it & all the sort in the sky,blanket the earth & cooled it down,causing the ice age & when the sort,cleared enough,to let the sun shine though,it started melting the ice back,just like what there doing now,there spraying the sky's around the world,in as many countries as they can,it cools down the center of our planet & causes the heat,to go to the poles & melt the poles,

                            • Bob Trenwith
                              Bob Trenwith  2 weeks back

                              Interesting. Now let's get back to the real science.

                          • Abstract Russian
                            Abstract Russian  3 weeks back

                            Are you ready kids?
                            Aye-aye captain.
                            I can't hear you...
                            Aye-aye captain!
                            Ohhhhhh! Who lives in a pineapple under the sea?

                            • Ariel Manzanares-Scisney

                              WHY was the Sun 7% dimmer???

                              • Bob Trenwith
                                Bob Trenwith  2 weeks back

                                You have the question back to front. It should be - what has caused the sun to get brighter.

                            • Shamir George
                              Shamir George  4 weeks back

                              Isn't this supposed to be taught at universities? Reminds of me of TOEFL exams.

                              • 45 ACP
                                45 ACP  4 weeks back

                                Man, scientists are dumb. Volcanos aren't cold.

                                • 45 ACP
                                  45 ACP  2 weeks back

                                  @Bob Trenwith Nani?

                                • Bob Trenwith
                                  Bob Trenwith  2 weeks back

                                  @45 ACP Be careful dear. An uneducated, low-life conservative would take that as an invitation.

                                • 45 ACP
                                  45 ACP  2 weeks back

                                  @Bob Trenwith I'm actually a 5 year old girl sir, and my parents aren't home

                                • Bob Trenwith
                                  Bob Trenwith  2 weeks back

                                  @45 ACP You seem to be about 6 years old. An adult actually says something when they speak. Perhaps you would care to point out where in the video they claimed that volcanoes are cold. Or are you going to keep playing kiddy games?

                                • 45 ACP
                                  45 ACP  2 weeks back

                                  @Bob Trenwith wait, you commented?

                              • Jamie Owns
                                Jamie Owns  4 weeks back

                                I wonder what the shape the continents will take in 250 million years. Is continental shift fast or slow? or a mix?

                                • Jamie Owns
                                  Jamie Owns  4 weeks back

                                  Honestly to find out the truth it needs Chemistry, Biology, Astrophysics and Geology to come together. It's the only way to find out the truth. Space events could easily trigger an ice age and were believed to do so million or so years ago. Also, the equator is funny. Because it's very mixed. Sure it's warm but you also got large tropics. And the hottest place on earth is California. Which is the worst place to put a huge city. With unrestricted growth. No wonder it gets forest fires it's been stealing it's water from the land for decades. it ran the underground water dry I believe. And is stealing water from ranchers up north. transporting it to the city. Then you got Las Vegas another desert city....

                                  That sun idea makes sense. Because in a billion years today it will be 10% brighter. and will be able to boil our oceans. And some think that it may be able to split the molecular bonds of h20. And the Hydrogen will escape into space. Kinda interesting.

                                  • Eric Zetterlund
                                    Eric Zetterlund  4 weeks back

                                    Don't leave me hanging like that! How did the sponges do it!???

                                    • Julia Naylor
                                      Julia Naylor  1 months back

                                      Breaking up is hard to do, stop naming Neil Sedaka song.😂

                                      • Julia Naylor
                                        Julia Naylor  1 months back

                                        Snowball Earth sounds like a giant cocktail.😂

                                        • redemption
                                          redemption  1 months back

                                          "Snowball earth" don't you mean Hoth?

                                          • blue smurff
                                            blue smurff  1 months back

                                            This made me appreciate how incredible it is for life to exist on earth

                                            • Roberto
                                              Roberto  1 months back

                                              The real question is how earth defrost😜

                                              • Bob Trenwith
                                                Bob Trenwith  2 weeks back

                                                She answers that from about 8:40.

                                              • Trueantitheist
                                                Trueantitheist  4 weeks back

                                                The one way we're heating it today global warming.

                                            • arno kosterman
                                              arno kosterman  1 months back

                                              As we clossing in to the sun
                                              Things got heat up😍💜
                                              To hold the solarsystem together we have manivestet a amptines for oll the energi to hold on en go treu energy goos in the direction of the proton of this system.
                                              Metterstate travles inwards so the eurth presence the meterstate there fore we are going inwardts😍

                                              • arno kosterman
                                                arno kosterman  2 weeks back

                                                Yes i have dislectia en i have manige a way to ride but coust a lots of energys😀
                                                I'm happy with that i ride at oll💟
                                                I can ride sometime 5 minn sometimes 25 minn, if i go onn. our, start every word ........ than mi body eats mi body (autoimune reaction) it is hard to see oll en not to be able to share💟
                                                Now i'm able to share , i progressing treu live en the wish to.
                                                En that is way words come out in the wrong spelling.😄
                                                But they are in the right contexct of the information that i shared. because: i see there is a need for it our the other wish to understand it💟🙃
                                                When some ones don't understand thay kan olways ask lile you dit jesterday 😃
                                                That you give the words back for me to ride it in the correct order when i'm able to🤗💕

                                                I'm not here to teach or leurn words spelling i'm here to profide the needs of understanding of creations😍💟 in the totalety.💟

                                                As i surve mi soul en oll souls to reseave the peaces so every one can understand for theme selfs💟🌀💟

                                                Thank you dear soul 💟 love you en en every one🤗💟♾💟

                                              • Bob Trenwith
                                                Bob Trenwith  2 weeks back

                                                @arno kosterman It is like you are speaking a foreign language. It is even impossible to decipher the meaning of that 7-word sentence.

                                              • arno kosterman
                                                arno kosterman  2 weeks back

                                                @Bob Trenwith words count en manny as in how much🍀

                                              • Bob Trenwith
                                                Bob Trenwith  2 weeks back

                                                @arno kosterman You are still incomprehensible. What is "wurths"? What is "counds"? Who is "Manny"? Have you ever considered using Google translate?

                                              • arno kosterman
                                                arno kosterman  2 weeks back

                                                There is olways some one,🤗 who thinks the wurths counds for what thay say😃
                                                Manny sees wat you say with the contex wat has been shared💜🌀 thank you fore showing😍🙌💟

                                            • Ray Johnson
                                              Ray Johnson  2 months back

                                              Hoth. They are naming Hoth not Earth

                                              • John Beauchamp
                                                John Beauchamp  2 months back

                                                So can we just grind up a bunch of basalt and dump it into the ocean to sequester CO2 and undo climate change?

                                                • Trueantitheist
                                                  Trueantitheist  4 weeks back

                                                  Sure if you're willing to wait a couple dozen million years.

                                              • Hajger89
                                                Hajger89  2 months back

                                                I bet Icelanders would like it there.

                                                • Chad Coley
                                                  Chad Coley  2 months back

                                                  What if human lead climate change leads to another snowball earth era hahahahaha

                                                  • Sweet Williams
                                                    Sweet Williams  2 months back

                                                    lowkey the spokes lady is kinda hot. Super interesting information in these pbs videos too, kinda addicted

                                                    • Adam Brown
                                                      Adam Brown  2 months back

                                                      Man, if only those sponges had banded together to stop climate change before the glaciers melted and flooded everything. How ever could life survive with temperatures over 40F?

                                                      • Sophie Shenkal
                                                        Sophie Shenkal  2 months back

                                                        I love love love this channel! It reminds me of just how special, beautiful, and one-of-a-kind our planet is. Thank you PSB Eons

                                                        • Wendell Clayton
                                                          Wendell Clayton  2 months back

                                                          C02 cools the earth .

                                                          • Bob Trenwith
                                                            Bob Trenwith  2 weeks back

                                                            @Wendell Clayton
                                                            We are currently in an ice age. Did you mean "last glacial period" which ended about 10000 years ago, when CO2 levels were at about 180 ppm?

                                                          • Wendell Clayton
                                                            Wendell Clayton  2 weeks back

                                                            See last ice age .

                                                          • Bob Trenwith
                                                            Bob Trenwith  2 weeks back

                                                            Interesting. Now excuse me while I return to the *real* science.

                                                        • Pheunith: Psychic-Water Type

                                                          Hmm so volcanoes are to blame for the ice age sequels. We must act on this to prevent more tragedies

                                                          • jediflip
                                                            jediflip  2 months back

                                                            Your knees. . . .

                                                            • Eric Kort
                                                              Eric Kort  2 months back

                                                              magnetic reverals cauase ice ages

                                                            • Franky dyson
                                                              Franky dyson  2 months back

                                                              Let’s have a video on the sun! The suns influence on climate. How the sun has caused global catastrophe!!

                                                              • Bob Trenwith
                                                                Bob Trenwith  2 weeks back

                                                                The sun has never caused global catastrophe.

                                                            • Simon Jäkle
                                                              Simon Jäkle  2 months back

                                                              What about the earth being (almost) entirely covered in ice 2 billion years ago?
                                                              Recent astronomical studies indicate that there was dust descending to the surface during millions of years about 600 or less million years ago possibly being caused by two huge "asteroids" (perhaps a L-chondrite and a comet-like object) that must have collided "near earth". That could correlate with the volcano theory of yours. In earths atmosphere, ice particels calmen the temperature while dirty dust often slowens the dissapearing of sun energy, so the warmth lasts longer

                                                              • EBFilmsMan
                                                                EBFilmsMan  2 months back

                                                                Never date a geologist. They take everything for granite.

                                                                • Adam C.
                                                                  Adam C.  2 months back

                                                                  But now human activity is to blame for climate change? Why? Please tell me why if all of these natural forces did it before.

                                                                  • Bob Trenwith
                                                                    Bob Trenwith  2 weeks back

                                                                    How did humans unleash a nuclear explosion in 1945 at Hiroshima when only natural forces had done it before?
                                                                    See how dumb your question is?

                                                                • Jonathan Williams
                                                                  Jonathan Williams  2 months back

                                                                  If the earth can be covered in solid water it can be covered in liquid water

                                                                  • Kim Marie
                                                                    Kim Marie  2 months back

                                                                    No mention of a huge climate affect is earths orbit and tilt!

                                                                    • Bob Trenwith
                                                                      Bob Trenwith  2 weeks back

                                                                      Why would they mention this when it has never caused a Snowball Earth?

                                                                  • Jamaar Jones
                                                                    Jamaar Jones  2 months back

                                                                    Lots of suggested events...

                                                                    • JUJU GLONL
                                                                      JUJU GLONL  2 months back

                                                                      If they say humans been here for millions of years like how they say the earth evolved over millions of years wouldn’t you think we would transition to living inside of the earth like agartha ?

                                                                      • Jeremy Ripton
                                                                        Jeremy Ripton  1 months back

                                                                        We've been around as Homo Sapiens for about 300,000 years....not.millions.

                                                                    • Andy C
                                                                      Andy C  2 months back

                                                                      I'm a sponge for snowball earth literature, your presentation was really amazing. thanks! kinda making me like PBS again?

                                                                      • Bill Smith
                                                                        Bill Smith  2 months back

                                                                        What about the fact that the magnetic pole change its Direction one occasion? Could that affect the theory? And does this change the entire thesis

                                                                        • Franky dyson
                                                                          Franky dyson  2 months back

                                                                          Bill Smith Im glad someone has a intellectual thought process, I was starting to give up hope. Thanks for the wonderful words theory’ and thesis... not fact!

                                                                      • Linear Wolf
                                                                        Linear Wolf  2 months back

                                                                        Volcanoes: Lets try something different........